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ICETTR-2013
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Paper Title : Modern Encryption Standard version V: (MES-V)
Author Name : Asoke Nath, Bidhusundar Samanta
Abstract : In this paper the authors have introduced a new symmetric encryption method named as Modern Encryption System Standard Version V. The system is basically an extension of MES I,II,III & IV and Bit level Encryption Standard(BLES)-II & III. MES-I,II,III mostly based on byte level encryption method. BLES-I,II,III are based on mostly bit level encryption methods. Here mainly three different module of encryption have used.Those methods are Modified Generalized Vernam Cipher Method with feedback, Bit level Generalized Modified vernam cipher method with feedback, and Bit wise XOR operation. The Modified Generalized Vernam Cipher Method is the Byte level method and this is a block cipher method. Here ‘Feedback’ of each character is used for the encryption of the next character. In the Bit level Genaralized Modified Vernam Cipher Method with Feedback key used is the same length as the input file. The key is essentially a stream of bits. This method is used multiple times in both ways from left to right and then from right to left. In the Bit wise XOR operation ,bit wise XOR operation performed with bit-1 with bit-n(last bit) and substituted in the position n and bit-2 with bit-n-2 and substituted in position n-2. The present method applies multiple encryption and multiple decryption. From the entered key string the randomization number and encryption number are calculated using a method proposed by Nath et al. This present method will be used for encrypting short message, password,bank data, and other confidential data. This method is free from brute force attack,plain text attack or differential attack.
Keywords : Plain text, Cipher text, Randomization, Bit level encryption, Feedback .
Cite this article : Asoke Nath, Bidhusundar Samanta " Modern Encryption Standard version V: (MES-V) " ,ICETTR-2013 ,Page No : 250-257.